12" Round Barometric Bypass Damper

Barometric Bypass Dampers
Aprilaire zone dampers will save you money, reduce installation time and provide trouble-free performance.

• Flexibility: Can be installed in any position
• Convenience: Comes fully assembled and is easy to install, set up and service
• Reliability: Rigorous testing on all components assures Aprilaire exceeds industry standards for 15-year reliability
• Made in the USA

World-Class Quality

• Rigorous cycle testing assures years of reliable performance
• Tested in extreme temperatures (over140 F) to simulate summer attic conditions
• Packaging and product, designed for rough handling, exceeds shipping requirements of the ISTA 1A drop test
• Five- year warranty

Fully Enclosed Regulator

• Insulation proof - All openings secured preventing sprayed-in insulation from entering regulator and causing problems
• Obstruction proof - All moving parts protected from external obstructions

Round Damper Blade Design

• Gasket material minimizes air bypass when blade is closed
• Common plastic bearing stabilizes damper blade
• Hex shaft allows secure blade fastening

One Piece Assembly

• Remove regulator as one assembly
• Assembly replacement while damper shell remains in duct
• Simple, labor-saving design

PLUS -

• Counter-weighted blade allows installation in any orientation
• Gap between regulator and damper shell allows damper to be fully insulated
• No loose parts - Damper ships completely assembled